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Online since: May 2004
Authors: Matthew Krohn, J.R. Hellmann, Carlo G. Pantano, N. Lower, R.K. Brow
Brow 2 1 Department of Materials Science and Engineering, Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA 2 Department of Ceramic Engineering, University of Missouri at Rolla, Rolla, MO 64509, USA Keywords: Float Glass, Soda-Lime-Silica, Tin, SnO2, 2-pt Fiber Test, Dynamic Fatigue, Stress Corrosion Exponent, Thermal Expansion, Elastic Modulus Abstract.The effect of tin on the properties of soda-lime-silica glass was examined in glasses doped with 0.2-3.0-mol % SnO2.
The thermal expansion of a glass is not only related to the symmetry of the bonding, as in crystalline materials, but also the free volume of the glass, which can allow for bond bending and rotation[7].
Pilkington, "The Float-Glass Process," Proceedings of the Royal Society of London Series A-Mathematical and Physical Sciences, 1969. 314: p. 1-25
Lynnworth, "Ultrasonic Measurement of Elastic Moduli in Slender Specimens Using Extensional and Torsional Wave Pulses," Journal of Testing and Evaluation, 1973. 1(2): p. 119125
Shelby, Introduction to Glass Science and Technology. 1997, Cambridge: The Royal Society of Chemistry
Online since: June 2004
Authors: Hyeong Joon Kim, Myung Yoon Um, Jae Kyeong Jeong, Hee Jin Kim, Ho Keun Song, Hyun Jin Kim, Hui-Chan Seo, Euijoon Yoon, Cheol Seong Hwang
Citation & Copyright (to be inserted by the publisher ) Growth of GaN films on porous 4H-SiC substrate by metal-organic chemical vapor deposition Jae Kyeong Jeong 1,2, Ho Kuen Song 2, Myung Yoon Um 2, Hyun Jin Kim 2, Hui-Chan Seo 2, Hee Jin Kim 2, Euijoon Yoon 2, Cheol Seong Hwang 2, and Hyeong Joon Kim 2 1 Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA 2 Inter-university Semiconductor Research Center and School of Materials Science and Engineering, Seoul National University, Seoul 151-742, Korea Keywords: GaN, MOCVD, and porous SiC Abstract.
The epitaxial quality of GaN films were analyzed by photoluminescence (PL) at 10K using the 325 nm line of a 20mW He-Cd laser and high resolution X-ray diffraction (HRXRD) with triple-axis crystal diffractometry (TCD) as well as double-axis crystal diffractometry (DCD) (Bede Science Instruments HRXRD with 2 kW Cu radiation source) Results and Discussion Figure 1 shows the surface morphology of GaN film on a standard on-axis 4H-SiC substrate.
Journal Title and Volume Number (to be inserted by the publisher) 3 surface of GaN film.
The distance between SiC and GaN reflexes along the y-axis direction (θ/2θ direction) was almost identical to the calculated value from the bulk lattice parameters of the two materials indicating that the strain in the grown film was negligible.
Online since: December 2011
Authors: Tao Xie, Hong Yan Wang, Xiao Biao Shan
Table 1 gives the material properties and structural parameters of the piezoelectric energy harvester.
Acknowledgements This work is supported by the National Natural Science Foundation of China (No. 51077018) and Science and Technology Planning Project of Qiqihar of China (GYGG2010-02-1).
White: Measurement Science and Technology, vol. 17 (2006), p.175-195 [5] L.
Li: Smart Materials and Structures, vol. 18 (2009), 115025 [8] H.A.C.
Tilmans: Journal of Micromechanics and Micromechanics, vol. 7 (1997), p. 285-309 [9] B.
Online since: August 2013
Authors: Lin Jiang, Ying Jie Zhang, Shi Qi Liu, Ming Long Yuan
Preparation and mechanical properties study of blown film from star copolymer of poly(epsilon-caprolactone-co-L-lactide) Shiqi Liu1,a, Lin Jiang1,b, Yingjie Zhang1,2,c, Minglong Yuan*1,d 1Engineering Research Center of Biopolymer Functional Materials of Yunnan, Yunnan University of Nationalities, Kunming, Yunnan, 650504, China 2Faculty of Metallutgical and Energy Engineering, Kunming Uniersity of Science and Technology, Kunming, Yunnan, 650093, China amiqimaike@yahoo.com.cn, bjianglin_1981@163.com, cyingjie@kmust.cn dyml@vip.163.com Keywords: poly(ε-caprolactone-co-L-lactide), star copolymer, polylactide, blown film Abstract: Star copolymers of ε-caprolactone and L-lactide (ε-CL/L-LA) were synthesized with different compositions in the presence of pentaerythritol and using stannous octoate as catalyst.
Materials and methods ε-CL and L-LA were synthesized in laboratory.
Acknowledgment We acknowledge financial support from Yunnan Provincial Education Office Scientific Research Foundation Project (2011J047), the Applied Basic Research Project of Yunnan (2011FB084), High-End Technology Professionals Introduction Plan in Yunnan province (2010CI119) and National Natural Science Foundation of China (31160198).
Progress in Polymer Science, 35:338-356 (2010)
Journal of Biomedical Materials Research Part A, 100A:3436-3445 (2012).
Online since: November 2016
Authors: Claudinei dos Santos, Roberto de Oliveira Magnago, Fernando Silva Santos, Samuel Kascher Moraes, Frederico Paula Ribeiro, José Vitor Candido de Souza
Table 1 shows the main characteristics of raw materials used.
Results and Discussion Raw Materials Characterization Figure 1 presents the results of XRD analyses of different raw materials investigated in this work.
Anusavice: Phillips Science of Dental Materials.
:The European Journal of Esthetic Dentistry Vol. 4 (2) (2009)
Inorganic Materials.
Online since: March 2022
Authors: Martin Vavruš, Peter Koteš
Its value applies only to a specific pair of materials.
Using the interface - "GAP" element, it is possible to model the contact between two surfaces of different materials.
Bahleda: Analysis of shear contact between wrapped layout of fiber reinforced concrete, POLLACK PERIODICA, International Journal for Engineering and Information Sciences, (2019) [7] D.
Simunek, Impact resistance of fiber-reinforced concrete, Advanced Materials Research, vol. 1054, ISSN: 1662-8985, pp. 48‒53.
Simunek, Impact resistance of fiber-reinforced concrete, in Advanced Materials Research, vol. 1054, 48-53., (2014) [15] P.
Online since: November 2011
Authors: Yong Liang Gui, Chun Yan Song, Bin Sheng Hu, Hua Lou Guo
The maximum content of chlorine in these sticking materials is above 60%.
As indicated in Table1, EDS results of some adhesion materials on inwall of dust collecting box and TRT blades shown that abundant of chlorine were included in these adhesion materials.
The existence form of chlorine in these adhesion materials of gas pipeline inwall and TRT blades is not elementary substance but highest possible FeCl3 and FeCl2 owing to chlorine is a extraordinarily active nonmetal element.
Liu: Journal of Shandong Inst.
Cen: Journal of China Coal Society Vol. 27 (2002), p.398 (in Chinese)
Online since: April 2008
Authors: Dan Lu Song, Deng Feng Zhao, Kui Ru Chen, Xiao Peng Yao, Wei Chuang Chen
It's a kind of top new technology which unites precise machinery, computer, NC, laser and new material as one, whose principle is to divide 3-D solid model created by CAD into many tiny platelets by laminated software and 2-D data driving execute devices, then to scan all kinds of materials and to create the design solid model by solidifying slides layer by layer.
It is an important realm of material science and a kind of surface disposition technology of surface protection/surface altering properties and surface function for materials [7].
The technology can be widely used complex shape part and bigger area plating for metal and nonmetal materials.
Ceramic Engineering and Science Proceedings, 1999, 20(4):347-354 [7] Shuguang CHEN, et al.
Laser-enhanced and high speed jet selective electro deposition. 1990, 2467, Trans.IMF. 1988, 66:50 [9] Jian WANG, Xudong FEI, Zuzhan YU etal.Laser-induced selective deposition of Ni-P alloy on Si.Appli.Surf.Sci, 1995, 84:383 [10] Nanai, L., Laser induced liquid phase deposition (LCLD): The state of art, Proceedings of SPIE - The International Society for Optical Engineering, 2001, v 4157: 228-248 [11] Kordas, K., Laser-assisted metal deposition from liquid-phase precursors on polymers, Applied Surface Science, 2001, 172: 178-189 [12] Kordas, K., Laser-Assisted Via Hole Metallization in PCB Materials, Journal of ELECTRONIC MATERIALS, 2001, 30(5):L21-25
Online since: April 2021
Authors: Peng Nai, Tao Yu, Xiao Hong Zeng, Yin Zhu Zhang
The main contents include curriculum orientation, curriculum objectives, syllabus, curriculum teaching contents and requirements, curriculum videos, arrangement of practical links, assessment plans, teaching materials, materials and other sections.
It breaks the traditional teaching mode of centering on teaching materials and teachers.
Journal of Higher Correspondence Education (Philosophy and Social Sciences Edition), 2011, 24(12): 56-58.
Journal of Shenyang University (Social Science Edition), 2016, 18 (06): 665-668
Journal of Hunan Institute of Humanities and Science, 2016, 33 (02): 103-106
Online since: November 2015
Authors: Jin Yang, Fa Zhou Wang, Yun Peng Liu
Raw materials and experiments 2.1 Raw materials (1) Cement: Portland cement (PC) was used with the physical and mechanical properties listed in Table 1.
Construction and Building Materials, 2011, 25(1), pp.1-13
Construction and Building Materials, 2012, 31, pp.226-230
ACI Materials Journal, 2015, 112, pp.463-470
ACI Materials Journal, 2009, 106, pp.123-127